package base.day17.innerclass;

public class TestLambda4 {
    public static void main(String[] args) {
        useCalculator(new Calculator() {
            @Override
            public int calc(int a,int b) {
                return a+b;
            }
        });
        useCalculator((int a,int b)->{return a+b;});
    }
    public static void useCalculator(Calculator calculator){
        int result=calculator.calc(10,20);
        System.out.println(result);

    }
}
interface Calculator{
    int calc(int a,int b);
}